Fill in the Blanks

Short Answer

Fill in the blanks. $\begin{array}{|l|l|l|l|}\hline F_{1} & d_{1} & F_{2} & d_{2} \\\hline 20 \mathrm{lb} & 13 \mathrm{in} . & 10 \mathrm{lb} & .....\text { in. } \\\hline 110 \mathrm{lb} & .....\text { in. } & 30 \mathrm{lb} & 11 \mathrm{in.} \\\hline\end{array}$